Bayley-3 Evaluation

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Evaluation of the Technical Quality of the Bayley-III When conducting research, it is important to use a standardized test that has all the criteria for the purpose of the test. I chose to examine the Bayley Scales of Infant and Toddler Development (Bayley-III). The Bayley-III examines the strengths and weakness of five developmental domains of children ranging between the ages of 1 month to 42 months (Pearson Clinical, 2018). These domains include cognition, motor, social-emotional, language, and adaptive behaviors (Tobin & Hoff, 2007). One reason an individual may use this assessment is to test the developmental levels of infants who were born preterm and/or had a low birth weight (Reuner, Fields, Wittke, Lopprich, & Pietz). The purpose …show more content…
This article addresses content, construct, and concurrent validity (Spittle et al., 2008). The authors report that all of the assessments have decent content and construct validity, and that the Bayley-III may not fully detect motor problems in infants who are born at less than 37 weeks of gestation (Spittle et al., 2008). When looking at reliability for the Bayley-III, the authors examined test-retest and internal consistency. The reliability coefficient for test-retest ranged from .67 to .86 for gross and fine motor movements (Spittle et al., 2008). For internal consistency, the coefficients ranged between .77 and .96 (Spittle et al., 2008). A source of error variance is not right out stated; however, the authors do discuss having appropriate sample sizes in order to gain a better perspective on the levels of change (Spittle et al., 2008). According to the authors, validity was found to be higher in different assessments for several developmental domains, such as cognition (Spittle et al., 2008). This may sway professionals to choose other assessments before the Bayley-III. Overall, it was found that all of the assessments used in this study are accurate in measuring preterm infants’ motor development (Spittle et al.,
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